monocular: meaning, definition, pronunciation and examples
C1/C2Technical / Scientific / Formal
Quick answer
What does “monocular” mean?
Designed for or involving the use of one eye.
Audio
Pronunciation
Definition
Meaning and Definition
Designed for or involving the use of one eye.
Relating to, affecting, or adapted for use with only one eye. In technical contexts, can describe optical devices, depth perception, or visual fields.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or semantic differences. Spelling is identical.
Connotations
Neutral technical term in both varieties. Associated with optics, medicine (ophthalmology), ornithology, and military equipment.
Frequency
Equally low-frequency in both varieties, confined to specialist domains.
Grammar
How to Use “monocular” in a Sentence
be + monocular (The device is monocular.)monocular + noun (monocular vision)used in a monocular fashionVocabulary
Collocations
Examples
Examples of “monocular” in a Sentence
adjective
British English
- The patient had monocular vision following the accident.
- Bird watchers often carry a compact monocular scope.
American English
- The sniper used a monocular sight for spotting.
- Monocular depth cues, like shading, help us perceive 3D in photos.
Usage
Meaning in Context
Business
Extremely rare. Possibly in niche tech product descriptions.
Academic
Common in psychology (perception), biology, medicine, optics, and physics papers.
Everyday
Virtually never used. An average speaker might not know the word.
Technical
Primary register. Used in specifications for optical devices, clinical reports, and scientific research.
Vocabulary
Synonyms of “monocular”
Neutral
Weak
Vocabulary
Antonyms of “monocular”
Watch out
Common Mistakes When Using “monocular”
- Misspelling as 'monoccular' or 'monoculer'.
- Using it as a general synonym for 'small telescope' without specifying its one-eyed design.
- Confusing it with 'monocle' (a single eyeglass).
FAQ
Frequently Asked Questions
A monocular is a compact, single-tube optical device for one eye, while binoculars use two parallel tubes, one for each eye, providing stereoscopic vision.
Yes, though less common than its adjective use. As a noun, it refers to the optical device itself (e.g., 'He packed his monocular').
It is a visual condition where one eye is primarily used. It can result from an injury or condition and involves a loss of stereoscopic (3D) depth perception, though many adapt well to it.
Yes, both derive from roots meaning 'one' and 'eye'. A monocle is a single corrective lens held in the eye socket for close vision, while a monocular is typically a telescopic device for viewing distant objects.
Designed for or involving the use of one eye.
Monocular is usually technical / scientific / formal in register.
Monocular: in British English it is pronounced /mɒˈnɒk.jə.lə/, and in American English it is pronounced /məˈnɑː.kjə.lɚ/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'mono' (one) + 'ocular' (related to the eye) = for one eye. Like a monocle, but for viewing distances.
Conceptual Metaphor
PERCEPTION IS A TOOL (A monocular device extends perception). LIMITATION IS SINGULAR (Monocular implies a limited, single perspective compared to binocular).
Practice
Quiz
In which field is the term 'monocular' LEAST likely to be used commonly?